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SSCOMP: model for annular zone formation in U-Pu-Zr fuel pins

Conference · · Trans. Am. Nucl. Soc.; (United States)
OSTI ID:6664858
;
Recently there has been a renewed interest in metallic fuels for liquid-metal reactors (LMRs) for a number of reasons related to safety and fuel cycle economics. The metallic fuel has demonstrated excellent performance in Experimental Breeder Reactor II (EBR-II). Although EBR-II uses a U-5 Fs metallic alloy fuel, the U-Pu-Zr ternary alloy fuel has long been recognized to have significant potential for use in LMRs. Currently Argonne National Laboratory is studying an LMR concept called the integral fast reactor, which is fueled by a U-15 Pu-10 Zr ternary alloy. This paper describes the model, called SSCOMP, recently incorporated in the SAS4A whole-core accident analysis code to compute the zone formation and thermal behavior of U-Pu-Zr fuel pins. The SSCOMP (steady-state composition) model provides a preliminary capability of computing steady-state material redistribution forming three annular zones. The model also computes solidus and liquidus temperatures and the resulting in-pin power and steady-state fuel temperature radial profiles.
Research Organization:
Argonne National Lab., IL
OSTI ID:
6664858
Report Number(s):
CONF-860610-
Conference Information:
Journal Name: Trans. Am. Nucl. Soc.; (United States) Journal Volume: 52
Country of Publication:
United States
Language:
English

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21 SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS
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BREEDER REACTORS
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EPITHERMAL REACTORS
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FISSION PRODUCTS
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LMFBR TYPE REACTORS
MASS TRANSFER
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MATHEMATICAL MODELS
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NATIONAL ORGANIZATIONS
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REACTOR ACCIDENTS
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RESEARCH AND TEST REACTORS
S CODES
SAFETY
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TRANSIENTS
TRANSITION ELEMENTS
TRANSURANIUM ELEMENTS
URANIUM
US AEC
US DOE
US ERDA
US ORGANIZATIONS
ZIRCONIUM